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# Concentration Essays

concentration

Osmosis Experiment

Materials: Potato cylinders, 20 percent sodium chloride solution, three test-tubes, test-tube rack, scalpel blade, Gel ink pen, syringe-10cm^3, Plastic ruler with mm, tile, forceps filter paper, Masking tape. Method: 1) Three test-tubes, A, B and C were labeled and initials

Laboratory Techniques and Measurements

A. Water boils at 100°C at sea level. If the water in this experiment did not boil at 100°C, what could be the reason? The reason why water did not boil at 100°C could be because we are not at

Colorimetric Analysis: Manganese in Steel

The goal of the experiment is to determine the percentage of Mn in an unknown metal sample by means of colorimetric analysis. First stock solution of KMnO4 with known concentration was diluted and then carried to spectrometer for analysis. The

Absorption Spectroscopy: Beer-Lambert Law

Absorption spectroscopy is a practical way to find what the light absorption of a substance is, and whit this data combining the Beer’s law equation you can determine the concentration of different things in a solution, in this case using

Bio Potato Core Osmosis

Table 1: Weights of potato pieces Solutions for the potato pieces to be dipped in(M) | Mass of potato pieces in Grams (+/-0.01)(initial mass)| Time when the potato pieces were dipped in the solution in seconds (+/- 0.01)| Time when

﻿Ocean County College

The purpose of this experiment was to construct a Beer’s Law Plot, determine the concentration of a sample using the Beer’s law plot, and to determine the concentration of Blue Dye #1 in a commercial product using visual Colorimetry. Procedure

Determination of Zinc and Nickel Concentration

I. Introduction In this experiment, the zinc and nickel contents of unknowns were tested using two methods. In the first method, nickel and zinc were separated through ion-exchange chromatography and analyzed through chelometric titration. In the second method, the unknown

Osmosis In Plant Cells

Osmosis is the diffusion of water molecules from an area of high concentration of sucrose solution to an area of lower concentration of sucrose solution, through a selectively permeable membrane. The water molecules move down a concentration gradient in osmosis.

Active and Passive Transport

Active and passive transport are the ways in which cells allow things to move into and out of the cell through the cell membrane. They include many different ways to transport things. Passive transport requires no expenditure of energy by

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